Rotary valve



March 2 1926.

J. R. E. SUTHERN ROTARY VALVE Filed Oct. 26, 1920 2 Sheets-Shea?l l d:az sa .3 1 if if 9 ff fs` wir lgr: l "/156 .39 7`:` I: 6

@ Il l f3 li ff 5 g/an ,Q 5 507/76/77 n? I. M ATTORNEY` March 2 1926.

J. R. E. SUTHERN ROTARY VALVE Filed Oct. 26. 1920 2 SheetS-Shee MM50-01mA TTORNE Y.

Patented Mar. 2, 1926.

` UNITED STATES 1,575,289g PATENT OFFICE.

JOHN R. E. lSUVJJEIERN, OF MONCTN, NEWBBUNSWICK, CANADA.

" .ROTARY vALvE.

Agpplicationled October 26, 1920. `Serial No.74179,620.

y To ZZ who/m. t may concern.

sof

`the driving mechanism may be vreadily in- Be it known that l, JOHN R.E. SUfliriEnN, a subject of the King of Great Britain, residing at cityof Moncton, in the Province of New Brunswick and Dominion of Canada,have invented certain `new and useful Improvements in a Rotary Valve, ofwhich the following is a specification.

This invention relates to rotary valves.A An object of this invention isto provide an improved rotary valve and tooprovide improved packing andlubricating means for `saidvalve, and to provide an improved valvestructure wherein, from a `single casting housing the inlet and exhaustchambers will open to a single port into the engine cylinder, andthereby aid in the cooperation and general efficiency of the operationof the piston of the cylinder without the escapement of gases through anextra cylinder port. i

`A further object of this invention is to provide a means for breakingup and mixing the incoming combustion charge before it enters thecylinder of the engine and in the valve, thereby promoting theefficiency of the engine and simplifying the carbureter construction. .l

A further object of this invention is to provide a rotary valvestructure in which terchanged from end to end of the valve.

A further object of this invention is to provide against the fireigniting the fresh fuel charge in thecarbureteror inlet mani-` fold, dueto a blow-back from improper setting of the valves, or untimely sparkingat i plugs, or from other like reasons.

A` further object of this invention is to provide au improved inletconduct .into the valve and to provide improved packingv means aroundthe valve driving mechanism and to provide for an easy, quick andinexpensive method of keeping the valve driving spindle in alinement. oy i A further ob 'ect Yof this invention is to provide an improved meansofu keepingthe valve properly seated.` Y l With these and other object-sin `view, the

invention consists in the construction, thev combination, the detail andthearrangement of parts as hereinafter more fully described and claimed.

in the drawings: v

Figure 1 is an end elevation of my improvedvelve structure; j

kis provided avalve of truncated cone shape 2, provided with a pair. ofports 3 and 4,

ythe port 3 leading downward in said valve and the port 4 leading upwardand being divided by a septum 5 of tortuous shape,

which, at the periphery dividing the two ports o and 4 is substantiallyvertical, and which at the top of the port 3, and the bottom of the port4 is substantiallydiscal at its outer edge, thereby providing arelatively large chamber both above and below the partition with alimited valve space.

The valve `2 is provided kat thertop with an inwardly extending flange'Gand likewise at the bottom with an inwardly extending 'flange 7, thesaid flanges each being' perfo `rated with threaded 'holes 8, the saidflanges being adapted to seat upon themselves respectively,perforatedcap 14 and spider 16. Elbows 9 and 10 are retained to `a valve`housingl?, preferably formed integral with the engine cylinder, andbeing retained thereto by cap screws 11 lpassing through flanges 12 onthe `said elbows.

Mounted on the top of the valve 2 is ay perforated member 14, fittingupon `the flange 6 and aiiiXed thereto by cap screws 15. ,-Aflixed tothe bottom of the said valve 2 in like manner is a spider 16, when it isdesired to drive the valve from the bottom,

but which is omitted in a top driving valve.

Beneath the perforated cap 14 is a screen 1.7, which screen is heldbetween the cap 14 and the valve 2 upon the flange V6, and which is inthe nature of wire gauze and is for the purpose of breaking up andmixing the incoming combustion charge before .it enters the cylinder ofthe engine, and has a further purposev of preventing tire from ignitingthe fuel charge in the carbureter or in the inlet manifold which mightbe due from y a blow-back from'impropersetting of the valves, or`untimely sparking at plugs, or from other like reasons. .y y

`Mouniecl centrally ef the csp 14 and exiiig properly timed relative t`vstroke by means' interconnecti tending through theshell ofthe elbow 9,when there isa top drive, and extending into the inner Wall of the elbow9`ivhe'nv Surrounding the spindles-18 or: 19'V isv a" helical spring 20,Whichseats upon asl1oulder 2 1 upon said spindles andfwvhich abuts atits upper end aA washer 222,`above which Washer 22 is ahse't of ballsadapted torollbetiveen thewasher 22 and a ball`rest23, the said ballrest23 being on the lower part ot' the hanged portion of a ferrule 24;extending through a perforatioii25 in the elboiv 9 and being retainedtherein by a cap 30 provided with aninteiveningpacking 31- Mounted.onthe upper end of thespindle 18, is afbevel-ed gear 82, held thereto bya pair of nut'sm and 34 anda Cotter pin `35. In the bottom drivethespindle'lQ extends into a vsocket 26 andfis likewiseatlixedto5 the caplef In theY bottom drive thebeveledgear 32 is atlixed by the nuts and34" to a depending spindle27 pack-edby theferru'le'23and cap 25 to thelower elbov -r 1`0.`

Surroundingv the, valve is preferably a water jacket 3G.y The' ports 3`aiid l' open intoga' cylinder port SS'extending at 39partiallyaround]the'eylinder Wall.

Surrounding theffsaid," valvef spiral, or

cross, grooves 4 0."lio'ldiiig pa'cfkingei to reduceV to a ,minimumthepossibilityof lealiage or pressurer of gases betiveen the Walls ofthe,taper bore andy `thef,rotating,member contained Within the boijel .Thespiral' or crossgrooving also servesinthe*purpose of lubrication whenlubrieatingx oil" is" notinsert'ed integr mixed'wvithlthe fuellorcoinbustible mixture,formingu the combustible charge of the engine.'

In operationwtheIA incoming fuelpasses through the elbow 9 and'thencethrough the perforationsin Ithe cap 1&1@ and into the vupper chamberland out, through the port 4 into they port 38V ofthe cylinder `when theport Nl' is r`cgistra'tionl with the port 38. Upon a' further rotationof theyalve the port 3 comesin registration with the port 38and't'he`exhaust gases are' let out through the portir and the lower C'liainberjand through the exhaust elbow 10,. the saiiie begear 32' with thecranlshaf I I This interconnectioi is accei'n lished' in diferenttypes otvengins (such as'. engines l'iaving a. convenre t `-inea`ns -for .at

It will be not-ed further that the-valve is disposed with its axisparallel to the piston ofthe engine, thereby yproviding a very easilylubri'cat'e'dand sim'plyconnected article and one which is run with aminimum of los's in mechanical efficiency.

kHavingjhus fully described my invention, whatY claim to be new is:

l. In combination With a rotary valve for internal combustion enginesembodying ahollow valve sleeve having circular open ends andA providedwith a partition dividing the interior of' the sleeve intonon-communicating intake and exhaust' chambers, the valve sleevehavingparallel ports `in-v the sides thereoffrespeetively1 communicating withthe intale and exhaust chambers, a iyii'e gauze dish covering theintalechamber at one end of' the valve sleeve, and a member detachablysecured to said end of the, valve lsleeve and clamping thev marginoffthe wvir'efgaue disk'y against the adjacent endedge of lthe valve,sleeve. f

2. In an internal combustion engine, a

power eyliiidei", afvalveA casingv having ope-n ends` andl providedwith' a port' in the side thereof'- ceiiiiiiunicating with the cylinder,Aelb ojv's securedJ to' andl communicating with opposite ends of thevalve-'casing and adapt `edto respectively form intake and exhaustcoviidiviits, hollow' frustoconica'l'valve sleeve having, circular openends andjformed with continuous bearing surfaces fittingthe valvecasingat opposite sides'of the valvecasing port, a partition dividingvthe interior of the sleeve into non-coiiimimifcating :intake andexhaust` chambers,saidivalve sleeve having tvv'o' parallellport's' ofthe same size in the side .thereof ,respectively communicating ywiththe', intake `andiexhailst'chambers and aria'iiged'ht'o suceessivelyregister with the por't the valve cas-ing, a perforated member rigid ththe larg'e'r end ofthe valve sleev shaft' `disfxised coincidei'it withthe axis of' the valve sleeve and having its inner endV rig kivith theperforated member, a bearing; sleeve' earnd by' the adjacentelbow andhaving said shaft journaled therein, an aiuti-friction thrust bearingfor said shaft including an inner ball race andan outer ball4v race, theVouter ball race constitutii'i'g a flange on the `inner end` of saidbearing sleeve, and a coiiil'iessioii' spring encircling said Shaftbetween the' inner ball race and the perforated n'ieinber for seatingthe valve sleeve inthe valve casing`` v Y 3.'.111 an internalAcoi'i'ibustion engine, a power` cylinder, ai valve casinghaving'openend'A and provided with a portl in'A the side-s t'l cylinder,

continuous bearing surfaces fitting the valve casing at opposite sidesof the valve casing port, a partition dividing the interior of thesleeve into non-comnumicating intake and exhaust chambers, said valvesleeve having two parallel ports of the same size in the sides thereofrespectively communicate; ing with the intake and exhaust chambers] andarranged to successively register with the port in the valve casing, aperforated member rigid with the larger end of the valve sleeve, a shaftdisposed coincident with the axis of the valve sleeve and having itsinner end rigidly and detachably secured to the perforated member, theouter portion of said shaft being journaled in the adjacent elbow, acompression spring encircling said shaft between the elbow and theperforated member for seating the valve sleeve in the valve casing, andmeans to facilitate attachment of a drive shaft to the smaller end ofthe valve sleeve. r

l. In an internal combustion engine a power cylinder, a valve casinghaving open ends and provided with a port Vin the sides thereofcommunicating with the cylinder,

elbows secured to and communicating with opposite ends of the valvecasing and adapted to respectively form the intake and exhaust conduits,a hollow' frusto-conical valve sleeve having circular open ends andformed with continuous bearing surfaces fitting the valve casing atopposite sides of the valve casing port, a partition dividing theinterior of the sleeve into non-communicating intake and exhaustchambers, said valve sleeve having two parallel ports of the same sizein the side thereof respectively communicating with the intake andexhaust chambers and arranged to successively register With the port inthe valve casing, a perforated member rigid with the larger end of thevalve sleeve, a shaft disposed coincident with the axis of the valvesleeve and having its inner end rigid with the perforated member, theouter portion of said shaft being journaled in the adjacent elbow, acompression spring encircling said shaft between the elbow land theperforatedmember for seating the valve sleeve in the valve casing, and awire gauze disk covering the intake cham# ber at the larger end of thevalve sleeve, said gauze disk having its margin clamped against theadjacent end edge of the valve sleeve by said perforated member.

In testimony whereof I aflix my signature.

JOI-IN R. E. SUTHERN.

